Typically, this has been the best choice for investors that love leverage and intend to build their wealth through leverage, which is not right or wrong just a matter of preference.

Life expectancy, medical technology, communication, lifestyle.

Maybe as a child of present technology, I would be more consistent.

My background in technology (ssserv.com) provides marketing and branding experience for lead generation. 

And, of course, neither of these investments produces cash flow, nor can it be easily leveraged like real estate.I do agree with the sentiment that taking these too far does get one into doomsday prepper-land.

then you have leverage. ours has been great but they do get over 3 to 4 work orders a day (sometimes up to 10) from us so they appreciate the work as well.

Pretty great rates right now, so great thought to pull that $ out and take advantage of the potential bargains that may come from the pandemic.Don't get so excited you over leverage. 

I’ve never used either but in my next deal I’d like to use an additional source of funding so I’m not over leveraged.

The leverage will be lower but in the end it's a better deal.

Would purchasing a primary residence and using that to leverage more properties or purchase a investment property as a way of leveraging for more properties.